package com.qdsgjsfk.vision.util;

import android.content.Context;
import android.widget.Toast;

import java.util.Arrays;

/**
 * Created by HP on 2018/8/27.
 */

public class MatchUtil {


        public static boolean checkIDCard(String num, Context context) {
        char[] id = {};
        for (int i = 0; i < num.length(); i++) {
            id = Arrays.copyOf(id, id.length + 1);
            id[id.length - 1] = num.charAt(i);
        }
        boolean IsFormRight = verForm(num);
        if (IsFormRight) {
            boolean IsCorrect = verify(id);
            if (IsCorrect) {
                return true;
            } else {
                Toast.makeText(context, "身份证输入有误", Toast.LENGTH_SHORT).show();
                return false;
            }
        }else{
            return false;
        }
    }


    private static boolean verForm(String num) {
        String reg = "^\\d{15}$|^\\d{17}[0-9Xx]$";
        if (!num.matches(reg)) {
            return false;
        }
        return true;
    }

    private static boolean verify(char[] id) {
        int sum = 0;
        int[] w = {7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2};
        char[] ch = {'1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'};
        for (int i = 0; i < id.length - 1; i++) {
            sum += (id[i] - '0') * w[i];
        }
        int c = sum % 11;
        char code = ch[c];
        char last = id[id.length - 1];
        last = last == 'x' ? 'X' : last;
        return last == code;
    }
}
